import java.util.Scanner;

public class XPattern {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        int n= scanner.nextInt();
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                if(i==j){
                    System.out.print('*');
                }
                else if(i+j==n-1){
                    System.out.print('*');
                }
                else System.out.print(' ');

            }
            System.out.println();//换行
        }


    }
}
